<template>
	<div class="my-counter">
		<button type="button" class="btn btn-light" @click="delFn" :disabled="obj.goods_count <= 1">-</button>
		<input type="number" class="form-control inp" v-model="obj.goods_count">
		<button type="button" class="btn btn-light" @click="addFn">+</button>
	</div>
</template>
<script>
	export default {
		props:{
			obj:{
				type:Object,
				require:true
			}
		},
		methods:{
			delFn(){
				if(this.obj.goods_count <= 1){
					return
				}
				this.obj.goods_count--
			},
			addFn(){
				this.obj.goods_count++
			}
		},
		watch:{
			obj:{
				deep:true,
				handler(){
					if(this.obj.goods_count <= 1){
						this.obj.goods_count = 1
					}
				}
			}
		}
	}
</script>

<style lang="less" scoped>
	.my-counter {
		display: flex;

		.inp {
			width: 45px;
			text-align: center;
			margin: 0 10px;
		}

		.btn,
		.inp {
			transform: scale(0.9);
		}
	}
</style>
